Need some VoIP over VPN help

FreePBX Endpoints
1

I have a freePBX box behind a PFsense firewall. I’ve been attempting to connect softphones to the server via OpenVPN. I can get the softphones to register, and ring but no audio either way. Where would I start on troubleshooting this issue?

2

You are probably missing the VPN subnet(s) from the Local Networks section of Asterisk SIP Settings.

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3

Thanks for the reply. I’ve added the tunnel networks to the config. Still that same issue. No audio either way.

4

Time to wireshark and sngrep the connection.

5

Some softphones need NAT=yes set for the extension, even tough there is a VPN, in order to detect the correct PBX IP address. For example Zoiper, or CSipSimple.

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6

Don’t forget the firewall either.

7

Thank you, that was the only issue. I just didn’t restart the service after I added the local networks.

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8

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